Sentences with word «mesospheric»

Mesospheric temperature trends at mid-latitudes in summer, Berger et al, 11/2011; ``... This large cooling is primarily caused by long - term changes of ozone in the upper stratosphere in combination with a CO2 increase.»

A more frequent positive phase is associated with a more active Sun due to cooling of the polar stratosphere (less mesospheric ozone descending through the polar vortex) and consequent lifting of the polar tropopause.

It is also proposed that, over time, the changes at the higher mesospheric level dominate because the higher level effect gradually filters down to lower levels through the descending column of air within the polar vortices as described above.

These thunderstorms also produced abnormally high numbers of mesospheric optical sprites.

These clouds, technically called polar mesospheric clouds, typically form near the poles and migrate toward the tropics.

Because the mechanisms of SF6 loss are uncertain, we perform a number of simulations employing a range of magnitudes of a simple constant mesospheric loss frequency, as well as a range of scenarios for SF6 time variation in the troposphere.

Studies using SF6 to estimate the mean age of stratospheric air have assumed the influence of mesospheric photochemical destruction is negligible.

A more frequent or more pronounced negative phase (as observed to a record extent during the very low solar minimum between cycles 23 and 24) is associated with a less active Sun due to warming of the polar stratosphere (more mesospheric ozone descending through the polar vortex).

M.E. Andersson et al «Missing driver in the Sun — Earth connection from energetic electron precipitation impacts mesospheric ozone» Discussed here.

Studies of mesospheric dynamics.

Noctilucent clouds, sometimes called Polar Mesospheric Clouds, were first reported in 1885.

How is it that the AGW enthusiasts attribute such a water vapor contribution to CH4 rather then the mixing of the Tropopause and Stratospheric water vapor in a similar action as to the boundary layer temperature change at the Stratospheric and Mesospheric level?

Who can forget Prince George celebrating his 20th birthday in July with a mesospheric circuit of Earth in SpaceX's first consumer - targeted vehicle, the Muskie?

[Response: Perhaps Ray will chime in, but this model (which does not deal with the spectral nature of the emissions) is not a good explanation of the stratospheric or mesospheric cooling, even if it might show similar behaviour in a grey body atmosphere.

Sassi, F.S., R.R. Garcia, B.A. Boville, and H. Liu, 2002: On temperature inversions and the mesospheric surf zone, J. Geophys.

Pardo, J.R., M. Gérin, C. Prigent, J. Cernicharo, G. Rochard, and P. Burnel, 1998: Remote sensing of the mesospheric temperature profile from close - to - nadir observations: Discussions about the capabilities of the 57.5 - 62.5 GHz frequency band and the 118.75 GHz single O2 line.